code_saturne User's Forum

hello,

I have tried a lot to use the module.but I failed. so can you give me any more details about how to use the module? many thanks.


thanks you,

Hello,

Could you specify what you tried and failed ? I don't think there's a tutorial yet for this feature, but there are quite a few threads on this forum which should help.

Are you using the GUI ? It should help guide you. For rotor-stator joinings in transient mode, define the interface faces selection criteria in the turbomachinery section, not in the mesh preprocessing section. Also, avoid combining this with periodicity with interfaces adjacent to the rotor/stator interface.

Regards,

Yvan

Yvan Fournier wrote:Hello,

Could you specify what you tried and failed ? I don't think there's a tutorial yet for this feature, but there are quite a few threads on this forum which should help.

Are you using the GUI ? It should help guide you. For rotor-stator joinings in transient mode, define the interface faces selection criteria in the turbomachinery section, not in the mesh preprocessing section. Also, avoid combining this with periodicity with interfaces adjacent to the rotor/stator interface.

Regards,

Yvan

hello Yvan,
Thanks for your replying.
I use the GUI.The first step in the case,I don't know how to define the interfaces.I saw the example ".xml" that you uploaded in this forum,but I can't find the "med",so I don't know how to build a model,and how to define the interface.so please help me .
Regards

Hello,

You first need to build you own mesh, defining volume groups for the rotor and stator part (so you can define those in the GUI), and one or more groups for boundary faces at the rotor/stator intersection (also used for selection criteria in the GUI).

The rotor and stator parts of the mesh must be initially disjoint (they can be in the same or separate files), at least when using the "transient" mode.

The mesh regularity is important near the rotor/stator interface, as it impacts mesh joining robustness.

Regards,

Yvan

hello Yvan,

thanks for you reply!

regards

binger

Yvan Fournier wrote:Hello,

You first need to build you own mesh, defining volume groups for the rotor and stator part (so you can define those in the GUI), and one or more groups for boundary faces at the rotor/stator intersection (also used for selection criteria in the GUI).

The rotor and stator parts of the mesh must be initially disjoint (they can be in the same or separate files), at least when using the "transient" mode.

The mesh regularity is important near the rotor/stator interface, as it impacts mesh joining robustness.

Regards,

Yvan

hello Yvan,
thanks for your reply,
when i run the case,using "full transient rotar",the erros occers:
cs_turbomachinery.c:923: Fatal error.

Error in turbomachinery mesh update:
Number of boundary faces has changed from 8536 to 10063.
There are probably unjoined faces, due to an insufficiently regular mesh;
adjusting mesh joining parameters might help.


Call stack:
1: 0x7f72c233d682 <cs_turbomachinery_update_mesh+0x832> (libsaturne.so.0)
2: 0x7f72c237ec37 <navstv_+0x3947> (libsaturne.so.0)
3: 0x7f72c23b0c83 <tridim_+0x49c3> (libsaturne.so.0)
4: 0x7f72c2289a78 <caltri_+0x30a8> (libsaturne.so.0)
5: 0x7f72c2271815 <cs_run+0x3e5> (libsaturne.so.0)
6: 0x7f72c2271342 <main+0x112> (libsaturne.so.0)
7: 0x7f72c1e7176d <__libc_start_main+0xed> (libc.so.6)
8: 0x400659 <> (cs_solver)
End of stack



how can i do ???
regards


binger

Hello,

Could you post a view of your geometry, showing the rotor and stator parts ?

Regards,

Yvan

hello,Yvan
this is my "med". it is a simple case,i just want to know how it works.
and the erorrs is that:
cs_turbomachinery.c:923: Fatal error.

Error in turbomachinery mesh update:
Number of boundary faces has changed from 5400 to 6283.
There are probably unjoined faces, due to an insufficiently regular mesh;
adjusting mesh joining parameters might help.


Call stack:
1: 0x7fe748367682 <cs_turbomachinery_update_mesh+0x832> (libsaturne.so.0)
2: 0x7fe7483a8c37 <navstv_+0x3947> (libsaturne.so.0)
3: 0x7fe7483dac83 <tridim_+0x49c3> (libsaturne.so.0)
4: 0x7fe7482b3a78 <caltri_+0x30a8> (libsaturne.so.0)
5: 0x7fe74829b815 <cs_run+0x3e5> (libsaturne.so.0)
6: 0x7fe74829b342 <main+0x112> (libsaturne.so.0)
7: 0x7fe747e9b76d <__libc_start_main+0xed> (libc.so.6)
8: 0x400659 <> (cs_solver)
End of stack


regards


binger

hello,Yvan

this is the "hdf"

Yvan Fournier wrote:Hello,

Could you post a view of your geometry, showing the rotor and stator parts ?

Regards,

Yvan

hello Yvan,
thanks for your reply.Please help me. i don't know how to achive it.
i want to know the reason that lead to the erors.so i can check it myself.
you can download the "med"and "xml"in the previos post.
regards
binger